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Skip Navigation LinksISA Home Page > Certification Home Page > Certification Credentials > ISA Certified Tree Worker Climber Specialists
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ISA Certified Tree Worker/ Climber Specialist

These credential holders have a minimum of 18 months experience professionally climbing trees in a safe and efficient manner to perform tree care. They have knowledge in the major aspects involved in tree care including, pruning, removal, cabling and safety. They must pass a knowledge exam and a skills exam conducted by trained evaluators.

If you are getting ready to test for the Certified Tree Worker Exam and have participated in the ISA Chapter or International Tree Climbing Championships, you may waive the work climb portion of the skills exam for the ISA Certified Tree Worker/ Climber Specialist (CTW/CS) certification exam providing you satisfy all of the other requirements. Should you have any questions regarding the Skills waiver please contact the ISA Certification Department. Please make sure the form is filled out completely and signed by the ISA certified Tree Worker Evaluator before submittal. Click here to download a copy of the Skills Exam Waiver Form.

Click here to download a copy of the ISA Tree Worker Application Handbook (Requires Adobe Acrobat Reader). Click here to download a copy of the handbook in spanish.

Click here to download a copy of the ISA Tree Worker skills form (Requires Adobe Acrobat Reader).

ATTENTION: If you are located in Arizona, California, Hawaii, or Nevada, please visit the Western Chapter to obtain Tree Worker information. http://www.wcisa.net/.

Mail or fax application with payment to:
International Society of Arboriculture
Post Office Box 3129,
Champaign, IL 61826-3129
Phone (217) 355-9411,
Fax (217) 355-9516,

The ISA Certified Tree Worker/Climber Specialist Written exam is also available by computer based testing.

If you chose to take the exam through the computer based testing, you will need to complete your application indicating you wish to take the computer based exam. The application will ask you for an exam date, you will leave this blank as this will not be decided until after your application has been reviewed and approved by our office. Once your application has been approved and processed we will email you a confirmation letter with instructions on how to schedule your exam date when it works best for you as long as it is within 90 days.

If you wish to take the exam through the computer based testing there will be a $100 administration fee on top of the normal exam fees. The administration fee is each time an applicant takes the exam through this system.

In order to schedule a computer based exam, you MUST submit your application and/or retake form to ISA. The testing vendor will not allow you to schedule an exam directly through them.

To view computer based testing locations please choose the link below.
Computer based testing locations

Click here to complete the Tree Worker/Climber Specialist Application online. (1st time applicants only)
Once you have submitted your application successfully, you will receive a confirmation email stating your application was received by the Applications Coordinator.

Click here to see a list of recommended study materials for the exam
Click here to view the exam outline.

Test Locations and Dates for Tree Worker Exams.

http://www.isa-arbor.com/certification/tests.aspx

Interested in the ISA Membership?

Click here for information on becoming a member of the International Society of Arboriculture.

If you have any questions you may email us at cert@isa-arbor.com or call us at (217) 355-9411.

© International Society of Arboriculture 2009
P.O. Box 3129, Champaign, IL 61826
(217) 355-9411
Email comments & questions to isa@isa-arbor.com
Friday, September 03, 2010 5:35:01 AM (CST/ISA Headquarters Time)
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